Compositions – Reductive bleachant – deoxidant – reductant – or generative – Deoxidant or oxygen scavenging
Patent
1995-04-19
1998-11-03
Gibson, Sharon
Compositions
Reductive bleachant, deoxidant, reductant, or generative
Deoxidant or oxygen scavenging
25218828, 25238954, 252392, 252393, 252395, 422 12, 422 13, 422 16, 422 19, C02F 100, C09K 1500
Patent
active
058303839
ABSTRACT:
A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 which may be the same or different represents hydrogen, alkyl of 1 to 8 carbon atoms or aryl or a water soluble salt thereof or a precursor thereof, and a tannin in a weight ratio of at least 2:1. This is particularly useful for boiler water systems.
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Fan Joseph Chwei-Jer
Greaves Brian
Hwa Chih Ming
Poole Stephen Clifford
Baxam Deanna
BetzDearborn Inc.
Gibson Sharon
Ricci Alexander D.
Von Neida Philip H.
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